Ray-Mapping Based Calculation Of The Intra-Corneal Wavefront And Corneal Ablation Profile For Ocular Aberration Corrections

We propose a ray-mapping based algorithm for the tissue ablation calculation to produce an optimum freeform anterior corneal surface that is responsible for the correction of ocular aberrations. With knowledge of the measured ocular wavefront and the anterior corneal surface, the numerical ray tracing method is used to calculate the intra-corneal wavefront and to generate the optimal corneal ablation profile determined by the accurate ray-mapping between the intra-corneal wavefront and the target ocular wavefront. This method is compared with the conventional wavefront-guided based algorithm for the ametropic eye models in theory, providing superior performance both in the aberration-free correction and the aberration selective correction. (c) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement